JPS5859839A - Manufacture of decorative board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a decorative board with a foamed convex pattern formed on its surface. Conventionally, this type of decorative board with a foamed convex pattern has been manufactured as follows. 0 (As shown in Figure 4) ■ On the base sheet (a) that has been subjected to surface treatment, a primary pattern (b) is formed using ordinary printing ink to which no foaming agent is added.

(2) Next, a secondary pattern (,Q) is printed using unfoamed ink to which a foaming agent has been added.

(2) Next, the overcoat is applied with a force of 1 or without applying the top coat, and is heated and dried to foam the unfoamed ink and form a foamed convex pattern (C). If the force is greater than or equal to 1, a "decorative sheet" is formed.

＠Next, attach the base plate (d) to a substrate such as plywood (d) and glue the “1 makeup notebook” on which the foam convex pattern was formed using the above method with adhesive (E)
Paste through.

Such conventional methods still have the following problems.

(2) When heating and drying, even if heating is performed from both the front and back sides, heat transfer from the back side is slower than that from the front side (the unfoamed ink area is heated, and foaming occurs from the surface layer).

Therefore, when the inside of the unfoamed ink area is completely foamed, the surface layer f! 1sO5 becomes over-foamed and the 1-foam convex pattern becomes non-uniform, resulting in low design quality and low F.

◎ When attaching 1 decorative sheet to the board, press 6 decorative sheet °' onto the board using a roll or plate.
Or for heating and pressing.

The foamed convex pattern (c) on the surface is simultaneously suppressed and crushed 31, resulting in a low design.

0 "Decorative sheet" is often used from the edge of the board to the back side.
Since this is rolled up, the 1 foam convex pattern + C + OS is formed on the wood end or the back side as shown in Figure 4. When the decorative board is attached, there may be a gap between the wood end and the structural base material, or when it is installed without adhesion to the structural base material. Unevenness 01 occurs at the end of the decorative board.

It is an object of the present invention to solve the problems of the conventional method of manufacturing this wooden decorative board.

That is, the present invention is as described below.

A non-foaming printed decorative sheet 4 is formed using a pre-dried foaming agent, and an adhesive S is applied to the printed decorative sheet 1. After that, the adhesive is preheated to form a non-foaming printed decorative sheet 4. When the printing sheet number is heated and pressed onto the substrate 6 and attached to the substrate 6I, a foamed convex pattern is formed at the same time.

The present invention has such a configuration.

The purpose is to provide a decorative board that forms a foamed convex pattern 7 that is uniformly foamed and that does not cause unevenness.

Examples of the method of the present invention will be explained below.

(Explanation of Examples) ■ After performing other treatments such as sealer coating and undercoating as necessary on the continuous base sheet 1, one color is applied using ordinary ink that does not contain a foaming agent. Alternatively, multicolor printing is performed, and the primary pattern 2 is formed using a secondary printing device [(Il).

(2) Next, a second lord 3 that may or may not be in sync with the first pattern 2 is formed using printing ink to which a foaming agent has been added in the second printing device 1 (Ill).

The printing device used at this time is a rotary screen printer, an intaglio roll coater, or the like. If necessary, a top coat may be applied when the pattern 3 is formed.

■ Like this, the primary pattern 2. The secondary pattern 3 is pre-dried using a pre-drying device (see figure) without the blowing agent DS in the printing-in θ' of the secondary pattern 3 to obtain a product printed decorative sheet 4.

The heat roll of the laminator (L) has a curing temperature of 1 for adhesive 6.
The number of sheets is determined by the foaming temperature of the foaming agent and the temperature of the printed decorative sheet 4 after preheating. When using atZ number of hot rolls, the temperature of the rolls was increased to 1 on the downstream side. When the final roll is turned on, the final roll is placed so that the blowing agent is foamed.

■ No need to roll up this printed decorative sheet number.

Adhesive 5 is applied to the back surface using an adhesive applicator (11).

The printed decorative sheet number for the product is M3 (as shown in Figure 3).
After winding up with a winding device (b) as shown in the figure, the rolled ball may be conveyed to a coating device and the adhesive S may be applied to the back surface of the printed decorative sheet 4 while being rewound again.

(2) Next, the adhesive 58 and the printing ink for the secondary pattern 3 of the printed decorative sheet 4 are preheated using the drying device QVI.

Preheating is performed to facilitate curing of the adhesive and foaming of the foaming agent during attachment to the substrate.

■ Next, the printed decorative sheet 4 is attached to the substrate 61 using a laminator device (L) equipped with one or more heat rolls.
At the same time as this adhesion, the foaming agent in the ink of the marking part 11 is foamed to form a foamed convex layer.

It is also possible to apply adhesive 5 to the back side of the printed decorative sheet 4 of the product, but apply adhesive to the front surface of the substrate 6 and attach it. In this case, the printed decorative sheet 4 is attached. The preparation must be preheated, which is a hassle and a hassle.

(2) Cut the substrate 6 to which the printed decorative sheet 4 is attached using a clipper (3) to obtain the desired decorative board.

(8) Apply a top coat to the surface of the decorative board as necessary.

(Actions and Effects of the Present Invention) Since the method of the present invention has the above-mentioned configuration, n to summarize its effects is as follows.

■ Since the adhesive 6 is preheated to attach the printed decorative sheet 4 to the substrate 6, it takes only a short time! ■Real stone,
Ru.

■ Second 4% of printed decorative sheets 4 8 (1)
The blowing agent in the printing ink is preheated.

Immediately before foaming of the foaming agent, the heat roll is heated while being pressed from the surface of the heat roll, so the heat roll is
Simultaneous foaming 05 is carried out at the moment.

05 has a foam convex pattern 7 with a uniform surface θ5.

You can get a 6-pole f40S with a high design quality.

If the foaming agent 05 is not preheated, the foam will foam as soon as the hot roll of the laminator (L) is turned on (over time), so the surface QS of the convex pattern 7 will not be uniform and the foam will not foam.

■-1 Immediately after pasting the printed decorative sheet 4 on the substrate 6, base & 6
Since only the surface part of the printing decorative sheet 4 is pressed and heated with the heating roll of Ll, when the printed decorative sheet 4 is rolled from the end to the back side, the second pattern change also exists at the end of 301, but the end part The foam convex pattern 7 is not formed in this case.Therefore, during construction, there is no gap QS between the ends of adjacent decorative boards.

In actual practice, a small heating roll is used to press the adhesive applied to the end or car surface, and the adhesive is sometimes cured.The curing temperature of the adhesive is lower than the foaming temperature of the foaming agent, so one foam No foaming of the agent was performed.

[Brief explanation of the drawing]

Figure 1 is a manufacturing process diagram of the Futaki Kotomei method. Figure 2 ■@■@: Semi-finished printed decorative sheet 4 of the method of the present invention
Ia Fr0)d older brother's drawing based on &6j. FIG. 3: A manufacturing process diagram of a suitable example other than the method of the present invention FIG. 4: An explanatory diagram of a conventional method in which a decorative sheet is rolled up to the back surface of a substrate. l...Base material sheet. 2... Primary pattern. 3...Second pattern. Number: Printed decorative sheet. 5...Adhesive, 6...Substrate 7...Foam convex pattern,

Claims (1)

[Claims] Marking portion 11 in which no foaming agent is added to the surface of base material sheet) (10)
Ink the primary pattern (2) using ink, then add a foaming agent to create a secondary pattern (3) that may or may not be the same as the primary pattern (2). The printing ink in the second pattern 1fR (3) is used to print the base sheet (1) on which the primary pattern (2) and the secondary pattern (3) are printed using the printing ink. After pre-drying in a non-foaming state to obtain a product-printed decorative sheet (4), adhesive (5) is applied to the back side of this product-printed decorative sheet (4), and then adhesive (5) is applied. The printed decorative sheet (4) is preheated at a temperature at which the foaming agent in the secondary pattern (3) does not foam, and the printed decorative sheet (4) is heated at a temperature at which the foaming agent in the secondary pattern (3) does not foam. 6) At the same time as the decorative board is attached, the foaming agent in the secondary pattern (3) is foamed at the moment it leaves the hot roll (r) to form a foamed convex pattern (D). Production method.